Year	current US$
1960	440460000
1962	515809999.99999994
1963	583210000
1968	1658950000
1969	2036250000
1970	2457730000
1971	2823370000
1972	3392310000
1973	5145270000
1974	8365799999.999999
1975	8135270000
1976	9072690000
1977	10474770000
1978	13071260000
1979	17647690000
1980	24016890000
1981	27577340000
1982	28179260000
1983	28164110000
1984	28670860000
1985	26238510000
1986	25513810000
1987	32627160000
1988	43869980000
1989	49695130001
1990	60959125756
1991	66268415986.00001
1992	72177241704
1993	85385538234
1994	102642000000
1995	124397000000
1996	131338000000
1997	132601000000
1998	101612000000
1999	111074000000
2000	134633000000
2001	116020000000
2002	116483000000
2003	136327000000
2004	172697000000
2005	200197000000
2006	238798000000
2007	263325000000
2008	319748000000
2009	245936000000
2010	310879000000
2011	366061000000
2012	379961000000
2013	373081000000
2014	366301000000
2015	297035000000
2016	282202000000
2017	324024000000
2018	370890000000
2019	359205000000
2020	261352000000